In the ordered pair below, which value represents the input to a function?
(3, 18)

3

Step-by-step explanation:

The standard notation for a point (also called an ordered pair) is (x, y).

And the standard form of writing a function is:

y = f(x).

Where x is the "input" of the function, and y is the "output" of the function.

Then we can see that in the point (x, y)

The input is the first number, and the output is the second number.

Then for the point (3, 18), the fist number will be the input, then:

In the ordered pair (3, 18), the value that represents the input to a function is  3.

answer: city needs 2.4 inches of rainfall more to match the record of 40 inches.

step-by-step explanation:

since we have given that

total annual rainfall a city record = 40 inches

this year, total rainfall recorded = 37.6 inches

number of inches of rainfall   is needed to match the record of 40 inches is given by

hence, city needs 2.4 inches of rainfall more to match the record of 40 inches.